The U.39 was in that buzzing and semi-active condition which to a trained eye is a sure indication that the ship is about to sail. Punctually at five minutes to 2 a.m. Weissman went to the bridge, and at 2 a.m. the wires were slipped and we started on a ten days' trip. As the dim lights on the mole disappeared and the ceaseless fountain of star-shells, mingling with the flashing of guns, rose inland on our port beam my mind travelled overland to the flat at Bruges, and I wondered whether Zoe was lying awake listening to the ceaseless rumble of the Flanders cannon. We went on at full speed, as it was our intention to pass the Dover Straits before dawn. Though our intelligence bureau issues the most alarming reports as to the frightfulness of the defences here I was agreeably surprised at the ease with which we passed. Von Weissman, to whom I had hinted that we might find the passage tricky, rather laughed at my suggestion, and described to me his method, which, at all events, has the merit of simplicity. He always goes through with the tide, so as to take as short a time as possible, and he always decides on a course and steers it as closely as possible, keeping to the surface unless he sights anything, and diving as soon as anything shows up. Even if he dives he goes on as fast as possible on his course, irrespective of whether he is being bombed or not. I must say it worked very well last night. We shaped a course to pass five miles west of Gris Nez, and when that light, which for some reason the French had commodiously lit that night, was abeam, we sighted a black object, probably a trawler or destroyer, about half a dozen miles away right ahead. Weissman immediately dived and, without deviating a degree from his course, held on at three-quarters speed on the motors. Some time later the hydrophone watchkeeper reported the sound of propellers in his listeners, and that he judged them to be close at hand, so I imagine we passed very nearly directly underneath whatever it was. After an hour's submerging we rose, and found dawn breaking over a leaden and choppy sea. Nothing being in sight, we continued on the surface for an hour, charging batteries with the starboard engine (500 amps on each), but at 9 a.m., the clouds lying low and an aerial patrol being frequent hereabouts, we dived and cruised steadily down channel at slow speed, keeping periscope depth. Several times in the course of the forenoon we sighted small destroyers and convoy craft [1] in the distance, all steering westerly. They were probably returning from escorting troopships over to France last night. In every case we went to sixty feet long before they could have seen our "stick." [2] Weissman is evidently as cautious in this matter as he is hardy in others; the more I see of him the more I like him; he is a man of breeding, and it is of value to serve in this boat. [Footnote 1: Probably "P" boats.--ETIENNE.] [Footnote 2: Periscope.--ETIENNE.]